... sightlines

Based on observations obtained with the ARO Kitt Peak 12 m telescope.

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...Crane et al. (1995)

Several of the lines of sight in the work of Crane et al. (1995) are denoted by their HR numbers, specifically HR 1156 = HD 23480, HR 1178 = HD 23850, HR 2135 = HD 41117 and HR 6812 = HD 166937.

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